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Bug 530086 - Consider pack expansions when matching non-type arguments to parameters during instantiation

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Alias templates can be instantiated with dependent arguments.

Change-Id: I123ee574ed2eecb09b551360a0bbc966893d9e34
This commit is contained in:
Nathan Ridge 2018-01-20 21:05:59 -05:00
parent ee784263c2
commit 5f9964098c
2 changed files with 12 additions and 0 deletions
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9
core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2TemplateTests.java
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@ -10551,4 +10551,13 @@ public class AST2TemplateTests extends AST2CPPTestBase {
public void testTemplateIdAmbiguity_529696() throws Exception {
parseAndCheckBindings();
}
// template <int...>
// using index_sequence = int;
//
// template <int... I>
// void foo(index_sequence<I...>);
public void testTemplateAliasWithVariadicNonTypeArgs_530086() throws Exception {
parseAndCheckBindings();
}
}

3
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPTemplates.java
View file

@ -2834,6 +2834,9 @@ public class CPPTemplates {
final IType paramType, ICPPTemplateArgument arg) throws DOMException {
// 14.1s8 function to pointer and array to pointer conversions.
IType a= arg.getTypeOfNonTypeValue();
if (a instanceof ICPPParameterPackType) {
a = ((ICPPParameterPackType) a).getType();
}
IType p;
if (paramType instanceof IFunctionType) {
p = new CPPPointerType(paramType);